pub fn generate_sequence_mermaid(
gq: &GraphQuery<'_, '_>,
entry_symbol_id: &str,
depth: u32,
) -> Result<String>Expand description
Generate a Mermaid sequenceDiagram from the call graph starting at entry_symbol_id.
Participants = unique files. Messages = CALLS edges. BFS bounded by depth.
Skips self-calls (same file calling same file) unless they cross functions.